Features: 1.9?drum?pad standard design promises more enjoyable playing experience just like a real drum set. 2.Equipped with dual built?in speakers, sound sources, accompaniments, and recording function. 3.No need to be plugged in, and can be played continuously for about 12 hours when fully charged. 4.USB MIDI port allows for connection to computer, tablet and phone for more convenient playing. 5.The soft and light weight pad can be rolled into a compact size for easier carrying and storage. specification:Item Type: Electronic Drum Pad Set Product Material: Silicone Product Size: Approx. 483 x 324mm / 19 x 12.8in Battery Type: Lithium Battery(Delivered with supporting battery) Battery Capacity: 1000mAh Dual Speakers: Built-in stereo speakers, can be used as audio Product Tone: 10 demo songs, 7 drums, 10 accompaniment Product Functions: MIDI, recording, audio input and other functions. Power Supply: USB/DC 5V rechargeable lithium battery Connected Equipment: Supports MD output, able to connect to computer or tablet to use MIDI software and electronic drum game. PackageList:1 xElectronicDrumPad1 x Pedal2 x Drumstick1 xLithiumBattery1 x USB Cable1x PowerAdapter1 x User Manual Note1. Do not fold and press; 2. When placing, please keep a certain distance from strong electromagnetic equipment such as radio and TV to avoid interference; 3. Please don't put the electronic equipment in overheated or dusty place for work, so as not to damage it; 4. Do not bend or squeeze the electronic battery by 90 degrees or a large angle to avoid damage; 5. During use, without any action for 3 minutes, it will automatically enter the dormant state, and it can be awakened by hitting the drum surface at will.